Attachment for gas-engines



No. 608,944. Patented Aug. 9, |898.

A .1. H. wlEHL.

ATTAcHMl-:NT Fon GAS ENGINES.

(Application med Apr. 21, 1897.)

(No Model.)

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JOSEPH nYSON wrEHL, OE ,ZELIENO'PLE rENNSYLvANiA, ASSIGNOR OE ONE- TmnoYro wir. M. O. JONES, OE rir'rsnune, PENNSYLVANIA.

ATTACHMENT FOR GAS-ENGINES.

SPECIFICATION forming part of Letters Patent No. 608,944, dated August9, 1898.

Application filed April 21, 1897- Serial No. 633,098. `(No model.)A i

panying drawings, and to the figures of refer-` ence marked thereon,whichA form a part of this specification.

This invention relates to certain new and useful improvements in anattachment for gas-engines.

The invention pertains to gas or other eX- plosive-power engines.Engines of this class possess numerous defects, some of which'are herementioned, and whichthis invention is designed to Overcome, amongv whichare First. Gases of any description when exploded in the cylinderproduce great heat,V which is absorbed by alli parts connected` thereto.VThis has been overcome to some' extent by forming water-jackets aroundthe cylinder and heads of:A the same, through which water is caused tocirculate,'but with little success, as the internal parts of thecylinder, where the heat is generated, become heated to a high degree,producing unequal expansion of parts, causing increased friction andconsiderable loss of power and wear upon the Working parts.

Second. Oils introduced into the cylinders of the gas-engines give verypoor results by reason of the heated condition of the cylinder, andinstead of actingas a lubricating agent frequently cause trouble bycharring and causing friction. 1.

Third. The main objectof the builders of gas-engines has been to producea gas-engine which would be capable of. giving a perfect impulse at eachend of thecylinder and at 4every stroke, which is of considerableimportance whereregular speed is required. Some bliilders claim a;perfect" explosion in their particular class of engines ateachrevolution,

whereas lit only takesnplace at intervals, as" any mixture of gas andair at a moderate temperature will enter in perfect volume andproportions into a cylinder only at intervals.

Fourth. Another objectionable feature in the present gas-engine is theloud report of the exhaustas it escapes from the cylinder, and themethod now employed isjto turn the exhaust into tanks, &c., which is notonly an additional expense-,abut causes a back pressure in the cylinderand loss .of power, and thus greatly retards, both by heat and pressure,the explosion of the gas in the cylinder at `the proper time.

Fifth."A By reasomof untimelyexplosions in gas-engines all castingsandfoundations are `constructed exceptionally heavy or of great strengthto withstand thefgreat pressure brought to bear upon them byover-accumulatedbodies of gas'f suftlcient'volume for several strokes orrevolutions, but which frequently explodes at one impulse, thusrequiring` unnecessary heavy partsfof the machine.

Furthermore, it is a well-known fact that when gas-engines areworkingheavy a solid sheet of flame is forced out through theexhaust-pipe toa considerable distance from the explosion, which isawaste of power and Venergy which, properly utilized, vwould efect asaving in gas. .Therefore "the object of my invention is'to modify andcorrect the abovedescribed defects byattaching my improved device to thecylinder-head of the engine, and which I term an animator, and whichconsists of a cylinder` provided with an internal piston which isadapted to be operated and cause a ne sprayof water to be introducedintothe cylinder at the time of the explosion by the pressure at eachexplosion of gas within the engine-cylinder.

The.v said piston-head is provided with a hollow pistonrod having avalve arranged therein and which enters into a chamber containing Water,which is supplied thereto from a tank provided with a suitablecheck-valve and a pipe leadingfromthetank and connecting to thechamber.The working parts of and the construction of the devicerwill be fullyshown and described in detail.`

In describing the inventioniin detail reference is had to theaccompanying drawings, forming a part of this specification, whereinlike numerals designate like parts, in which* IOO Figure 1 is an endview of my improved device attached to an engine-cylinder. Fig. 2 is aside elevation of the same, partly in sec tion. Fig. 3 is a sidesectional view of the piston with its valve arranged therein. Fig. 4 isan end view of the same. Fig. 5 is an end view of the valve removed.

Referring to the drawings, the numeral 1 designates a gas-enginecylinder of ordinary construction, and the numeral 2 designates the headof the same and which is provided with an opening 3.

4 is a circular flanged check-plate which has an opening formed withinits central portion and is provided with a flanged extension portion 5,which extends a short distance into the said opening of thecylinder-head. Fitted onto the outer face of the said check-plate is theair-cylinder 6, which is secured to the engine-cylinder head by thebolts 7.

Secured to the opposite end of the said aircylinder and by the bolts 8is the water-chamber 9. Fitted into the opposite end of thewater-chamber is the shouldered nut 10,which forms a head for that endof the chamber. Upon the upper portion of the water-chamber is formedthe projecting boss 11, which is provided with an opening or inletcommunieating with the interior part of the chamber and has fitted orconnected to its upper end the pipe 12, which leads from thewater-supply; or if the engine is of the upright pattern a more' directwater-supply may be obtained by removing the screw-nut 10 and connectingthe supply-pipe to that end of the chamber and by plugging up the inlet11. A drain-cock 18 is connected to the under side of the chamber, sothat the water may be drained from the chamber through the opening 19when required. A double piston-head 2O and 20 is fitted into theair-chamber and is formed upon or attached to the hollow piston-rod 21.The said piston-rod extends into the water-chamber at one end, and theopposite end extends into the engine-cylinder. An enlarged portion 21 isformed upon the said piston-rod and extends part way into the opening ofthe check-plate. Within that end of the said piston-rod which extendsinto the cylinder-head is secured the hollow spraying cap or nozzle 22,having-a-series of small openings formed therein,through which the wateris sprayed into the cylinder. Fitted into the opposite end of the saidpiston-rod, which extends into the water-chamber, is the hollowr thimble23, through which the water enters into the piston-rod and has avalveseat formed upon its inner end.

Within the enlarged chamber portion formed within the piston-rod isloosely fitted the check-valve 24, which is adapted to fit upon the seatformed upon the inner end of the said thimble and has the wings 25formed thereon and which are adapted to support the valve within thesaid chamber.

ton-rod up through and between the flanged The small holes 26, leadingfrom the interior of the pis- 1 heads of the piston, are adapted toconduct water from the interior of the rod to the space between theheads, so as to keep them cool. Within the lower side of theair-cylinder is formed the small opening 26 through which the air issupplied to the cylinder, and the telescopic spiral spring 27 is adaptedto return the piston to its normal position.

The operation of the device would be as follows: Supposing'that therehad been an explosion in the cylinder of the engine and exhaust andtheengine-piston is on the return andis compressing the air and gas for thenext impulse, now if this accumulated pressure be allowed to actdirectly upon the piston-head 2O within the air-chamber it would,

by reason of its large area, cause it to move forward and ,exhaust thewater within the chamber and piston-rod by spraying most of it into theengine-cylinder before the explosion would take place; but as only theface of the enlarged portion 21 of the piston-rod is presented and asthe area thereof is only about one-third of the surface area to theaccumulated pressure its movement would be correspondingly slow, and atthe same time while moving slowly it is forcing a fine spray of waterwhich Vinvigorates and causes a perfect explosion by the component partsof gas, air, and water. When the said explosion takes place, the pistonis far enough advanced into the air and water chambers 6 and 9 to allowAthe pressure from the engine-cylinder to enter that end of theair-chamber and act upon the piston -head 20, forcing the said pistonrapidly forward by reason of the large area presented thereon andcausing the plunger 2l to enter farther into the water-chamber anddisplace the water therein, which escapes into the chamber within thepistonrod and out of the opposite end into the fire and heat within theengine-cylinder, where it is instantly converted into steam. After thepressure within the engine-cylinder has been exhausted the spiral spring27 returns the piston to its normal position and at the same time actsas a pump and fills the waterchamber with a new supply of water. Beforethe said piston within the air-chamber returns to its normal position asufficient amount of air enters the said chamber through the smallopening 26, so that when the piston returns to its normal position theair will form a cushion between the face of the piston and thecheck-plate and prevent a sudden blow, and at the same time the saidcompressed air will aid in operating or forcing the piston back again atthe beginning of its next stroke.

Slight variations may be made in the detail parts of the inventionwithout departing from the general principle involved. y

Having thus fully shown and described my invention, what I claim as new,and desireto secure by Letters Patent, is-

IOO

IIO

l. In a gas-engine, the combination with the i a central opening and acircular anged eX- tension or boss itting in said opening, theaircylinder secured to said check-plate formed with an air-inletopening, thewater-cylinder secured to said air-cylinder, thewater-supply pipe and the shouldered nut closing the end of saidwater-chamber, of the hollow pistonrod, provided with double pistons,with radial openings between the same, the enlarged portion passingthrough the opening in said hanged check-plate, the spraying-nozzle, thecheck-Valve located in said piston, formed with wings and the spiralspring located in said air-cylinder, substantially as shown anddescribed. y

2. The combination with a gas-engine cylinder, having an opening in onehead, the aircylinder formed with an airinlet opening, and

